Relay protection system of intelligent box-type substation

Abstract

The invention relates to the technical field of relay protection, and particularly relates to a relay protection system of an intelligent box-type substation. Therelay protection system can automatically control the number of started transformers according to the actual power utilization condition so as to prevent the transformers from being damaged and effectively prolong the service life of the transformers. Therelay protection systemcomprises a box body, wherein two transformers are arranged in the box body, namely, a first transformer and a second transformer, a control switch is arranged at the top end of the second transformer, a manual switch is arranged at the top end of the control switch, a control module is arranged at the top end in the box body, through holes are formed in the left end and the right end of the top of the box body, and a power supply line penetrates through the two through holes and is connected with the control switch in series, the control switch is electrically connected with the control module through a control line and a detection line, the control switch is electrically connected with the manual switch through a plurality of wires, the manual switch is connected with the control module through a plurality of wires, and the control switch is connected with the first transformer and the second transformer in parallel through a plurality of wires.

Description

technical field [0001] The invention relates to the technical field of relay protection, in particular to an intelligent box-type substation relay protection system. Background technique [0002] As we all know, the box-type substation has been rapidly applied in the distribution network since its inception due to its small footprint, convenient movement and short construction period. power supply etc. [0003] Due to the improvement of people's quality of life nowadays, people often use air conditioners to resist the scorching heat in summer, and the increase of high-power electrical appliances makes the voltage in many villages and towns today often appear low and cause voltage instability. As a result, the air conditioner in a family cannot be turned on, causing deep troubles to people, and when the voltage in the village is too low, the work burden of the transformer will greatly increase, which is very easy to cause damage to the transformer, short circuit, etc. , is ...

AI Technical Summary

Problems solved by technology

[0003] Due to the improvement of people's quality of life nowadays, people often use air conditioners to resist the scorching heat in summer, and the increase of high-power electrical appliances makes the voltage in many villages and towns today often appear low and cause voltage instability. As a result, the air conditioner in a family cannot be turned on, causing deep troubles to people, and when the voltage in the village is too low, the work burden of the transformer will greatly increase, which is very easy to cause damage to the transformer, short circuit, etc. , is very dangerous

[0004] If you need to solve this problem, you need to install more transformers in the power grids of villages and towns. Although this solves the problem of electricity consumption in summer, when the summer passes, its high-power electrical equipment will be greatly reduced. There is no need to use too many transformers, and if the installed transformers want to be closed, they need to be disassembled and then reconnected to the power supply. If the redundant transformers are not closed, the use of too many transformers will cause the transformers to fail. The necessary loss reduces the service life of the transformer, which makes the use of the transformer more troublesome and cannot meet the needs of today's smart age

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